Patent US3357477A successfully refreshed from Google Patents.
US3357477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film processing apparatus
Assignee: Artisan Industries Inc
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Filing: 1966-12-23
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Granted: 1967-12-12
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Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Leo J Monty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:31
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/22; B01D1/222; B01D1/223; B01D1/225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
AN IMPROVED FLUID PROCESSING APPARATUS OF A THIN FILM TYPE WHICH COMPRISES IN COMBINATION: (A) A CLOSED CHAMBER CHARACTERIZED BY AN INTERIOR WALL DEFINING A SURFACE OF REVOLUTION; (B) A ROTOR SHAFT WITHIN THE CHAMBER; (C) MEANS TO ROTATE THE ROTOR SHAFT; (D) AN INLET FOR THE INTRODUCTION OF FEED MATERIAL; (E) AN OUTLET AXIALLY SPACED APART FROM THE INLET FOR THE REMOVAL OF PRODUCT MATERIAL; (F) ROTOR BLADES SECURED TO THE ROTOR SHAFT FOR ROTATION THEREWITH, THE BLADES HAVING A ONE END AND OTHER END AND RADIALLY AND COAXIALLY ARRANGED FROM THE ROTOR SHAFT AND EXTENDING INTO A CLOSE THIN-FILM FORMING RELATIONSHIP WITH THE INTERIOR WALL, SAID BLADES HAVING A HELICAL TWIST THEREIN AT EITHER ONE OR THE OTHER END THEREOF, THE REMAINING PORTION OF THE BLADES BEING COPLANAR WITH THE ROTOR SHAFT AXIS.
Claim 2
Dependent Claim
135 words
AN IMPROVED FLUID PROCESSING APPARATUS OF A THIN FILM TYPE WHICH COMPRISES IN COMBINATION: (A) A CLOSED CHAMBER CHARACTERIZED BY AN INTERIOR WALL DEFINING A SURFACE OF REVOLUTION; (B) A ROTOR SHAFT WITHIN THE CHAMBER; (C) MEANS TO ROTATE THE ROTOR SHAFT; (D) AN INLET FOR THE INTRODUCTION OF FEED MATERIAL; (E) AN OUTLET AXIALLY SPACED APART FROM THE INLET FOR THE REMOVAL OF PRODUCT MATERIAL; (F) ROTOR BLADES SECURED TO THE ROTOR SHAFT FOR ROTATION THEREWITH, THE BLADES HAVING A ONE END AND OTHER END AND RADIALLY AND COAXIALLY ARRANGED FROM THE ROTOR SHAFT AND EXTENDING INTO A CLOSE THIN-FILM FORMING RELATIONSHIP WITH THE INTERIOR WALL, SAID BLADES HAVING A HELICAL TWIST THEREIN AT EITHER ONE OR THE OTHER END THEREOF, THE REMAINING PORTION OF THE BLADES BEING COPLANAR WITH THE ROTOR SHAFT AXIS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |